A Highly Stable (4, 8)‐Connected Tb‐MOF Exhibiting Efficiently Luminescent Sensing towards Nitroimidazole Antibiotics. Issue 1 (16th December 2019)

• Record Type: Journal Article
• Authors: Yang, Han‐Wen; Xu, Ping; Wang, Xiu‐Guang; Zhao, Xiao‐Jun; Yang, En‐Cui
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 646:Issue 1(2020)
• Page Start: 23
• Page End: 29
• Publication Date: 2019-12-16
• Subjects: Luminescent metal‐organic framework -- Terbium -- C3‐symmetric ligand -- Fluorescence quenching -- Nitroimidazole antibiotics -- Limit of detection; Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201900271
• Languages: English
• ISSNs: 0044-2313

Abstract

Abstract : A robust 4, 8‐connected Tb‐based metal‐organic framework (Tb‐MOF) with paddle wheel‐shaped {Tb2 (COO)4 } subunits extended by C 3 ‐symmetric 3, 3', 3''‐[1, 3, 5‐benzenetriyltris(carbonylimino)]tris‐benzoate connector was hydrothermally synthesized, showing highly environmental stability, good dispersion and intense green emission in water system. Resulting critically from the well suppressed absorption towards the excitation energy, the Tb‐MOF exhibits rapid and efficient fluorescent response towards nitroimidazole antibiotics with strong quenching constants and low detection limits of 1.59 × 10 4 m –1 and 2.4 μM for metronidazole as well as 1.62 × 10 4 m –1 and 2.9 μM for dimetridazole. Moreover, the sensitive and selective identification of the Tb‐MOF has strong anti‐interference and excellent regeneration ability, which endows the promising applications of the Tb‐MOF as fluorescent sensing materials. Abstract :